Q: Why would one of my belts in my 2004 Volvo S40 get really thin

asked by on May 25, 2017

One of the belts in my car got really thin all of the sudden and i think it might be the serpentine one but i am not sure. I have a picture of it and i can show it to you because im not sure which belt that it. Thank you

My car has 232000 miles.
My car has an automatic transmission.

Serpentine/Drive Belt Replacement $96.60 - $325.96 Get a Quote

Hello. If the belt itself suddenly got really thin that is usually because the belt is old and has become brittle. When this occurs the belt will crack and start to come apart. Most of the time it splits in half and becomes thinner prior to fully breaking. There are other issues that can cause this also like a look pulley, but that would usually also cause other issues. If you want to have this repaired, consider YourMechanic, as a certified mechanic can come to you to [replace your serpentine belt] https://www.yourmechanic.com/services/serpentine-drive-belt-replacement

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $65/hr

What others are asking

Serpintine belt might be out? Car isn't starting.

Although the serpentine belt does power multiple components on your Cadillac Seville, the electrical gauges are not part on that list to my knowledge. The alternator, which is typically driven by the serpentine belt does power those parts however. My...

Car won't start up.

It sounds like your car cranks but isn's starting, if that's the case it's missing one of the three requirements for combustion; compression, fuel, ignition. If, while cranking, the car sounds like it always has and not much faster than...

Car has a bad wobble when going down the road, gets worse when applying the brakes but better with higher speeds. 2004 Nissan Murano

Hello - you may have a bent wheel, a wheel with a dent on the inside of the rim. You don't mention why the wheel bearing was changed, but modern wheel bearing assemblies (with dual, concentric ball-bearings) are sensitive to...

Car stuck in park.

I have come across this often on your the Aviator. In some cases the shift cable comes loose from the transmission, but most of the time it is because the shift cable broke. The cable goes from the shifter, through...

Car won't go forward.

The power steering on this vehicle has an electrical power steering pump that supplies pressure to the system and communicates to the computer system on the vehicle for any problems. If you say you are seeing a power steering light...

Won't start 2008 Chrysler PT Cruiser

Hi there - as you suspect, a failed alternator, or serpentine belt (which drives the alternator) or its tensioner, could have failed and caused the behavior you are now seeing. Even a loose belt due to a weak tensioner could...

How much should it cost to change freeze plug

Sent to CS

My chimes only come on after I start my engine

Hi there. Alert chimes are triggered by sensors located on doors, seat belts and other devices that alert a driver that something is either open or not properly secured. To determine why they are not working correctly, have a mechanic...

2007 jeep liberty. Noticed no a/c soon realized power steering loss. Battery light came on. Fluid all over engine bay. Need help

Check to see if the drive belt is intact. If it isn't that would explain the loss of power steering, AC and the battery light. If the belt is intact, then something must be locked up, preventing the other parts...

Related articles

Understanding All the Drive Belts in Your Car
Your car’s engine has a number of mechanical parts attached to it that perform essential functions like delivering power (the alternator), cooling...
How Belt Tensioners Work
The The drive belt tensioner in your car is a small component that works in conjunction with the serpentine belt to ensure that everything in your engine works as it should. From time to time, the tensioner should be checked...
A Buyer’s Guide to the 2011 Volvo S40
When When you think of Volvo, safety undoubtedly comes to mind first, and that’s exactly what the 2011 Volvo S40 is all about. Of course, it’s also comfortable, refined and features a pretty high-performing engine, to boot. You might actually...